Oil burner



Dec. 21 1926. 1,611,425

N. ENHOLM n QIL BURNER Filed Jah. 21, 1925 2 sheets-sheet 1 l 'Dcl 21";l1926@y N. EVNHOLKM OIL BURNER Filed Jan. 2l 1925 2 Sheets-Sheet 2 .45.burnediat gauze Spin the outle 55 '6 by ampaiand NORMAN ENHo yra'rauroFFica-* I j LM, F CHAPPAQUA, NEW YORK.

om BURNER.

lApplication filed January 2 This invention relates to an oil burner formixing air and oil vapor to produceI a cornbustible or explosivemixtureanl particularly Lto the mixing of air With the vapors I 5 of petroleumoils such as kerosenen The object of the invention'is to provide an oilburner whichy will vaporize the oil and mix it with the air in,continuous quiet and eiiicient manner and Without the use of high 1Qpressures or small nozzles.

Further .objects and advantages of the invention Will appear from thefollowing description taken in connection With the accompanying drawingsin which Fig. lis an elevational yieW of apparatus illustrating oneVembodiment of the inven' tion with parts broken away and in section.v

Fig', 2 is a section on line A-A of Fig. 1. FiO. 3 is a View similar toFig. l but b lillustrating a modification, and

Fig. 4 is a diagram showing a current supply and charglngsystem for theelectrically driven motor. Inv the embodiment of the apparatus shown inFigs. 1 and 2 a vburner embodying this invention comprises a curved pipe1 into Which'oil vapor passes from chamber 2 having vaporizing plate 3.ln pipe 1 the .oil vapor'is mixed with air passmg in the direction ofthearrow and forced along as by fan 4 driven by motor 5; The outlet 1a ofthe pipe is' positioned under the vaporizer 2, 3 and a portiomof thepipe 1 so that the burning oil vaporizes the intlovving oilVand-preheats the mixture of oil vapor and air. y l The iniow 'ofoilpreferablyjs adjustable c as by sliding valve tj connected Lto oil pum-p7 iny iioat chamber 17 by pipe 8 and to 40 the vaporizer 2, 3 by pipe 11from which it flows onto the plate' 3. AAV gravity overflow pipe 12returns any excess oil back to the reservoir float chamber 17 so thatonly vaporized oil can enter the pipe 1 and be t la. 'i 'The supply ofoill to `float' chamber. 17 enters throughinlet 104 and iscontrolled bfloat .16 in usualmanner and thel ump may be driven 'by motor '5.througgears. in 'casing lfidriving the vertical pump shaft 14'.. Y l Thesupply vof air enters through Windows 23 controlled byf the shutterring'l whichv may be connected to the oil control v'alve link 15 so that,the oil and A 151925. serial No. 3,5'81.

air ,supplywvill 'be adjusted together toaid in maintai' ing thedesired'l proportions in the mixture to be burned. p

"Toignite the burner the motor-5' will be started and aI preliminaryheating provided byn burning oil inthe saturated asbestos ring 18, whichWill vaporize' oil in vaporizer 2, '3 and lignite the mixture into aflame above the gauze 9 to form the ame.

In the burning of oil according. to'this invention a mixture of oilvapor and air feeds-the Haine. In forming the mixture heated oil vaporis 'supplied to the stream of air and further heat may be supplied tomaintain a high temperature of the mixturebut preferably below theignition point so that combustion will not take place until the mixturepasses the gauze. 9. 'llhe flame itself is then utilized to .supplyfurther vapor tothe air vstream and so the process is continuous. Thereis noburning. of the oil as liquid or unmixed vapor and there isnon/clogging of passages and no excessive Ipressure isneeded to supplythe v`flame. By

this burning of theinixed gases the formation of soot and other depositsis avoided and combustion is' carried on in a clean,l etlicientand'noiseless manner..

The mixture of oil vapor and air produced by this invention may also beused as an explosive mixture, for Yinstance Yin internal combustionengines, In such case the suction 'of the intake manifold' of the enginemay: be 'used to draw in the current of air as illustrated in Fig. 3Where' the 90 pipe 1 .connected at one end to the intake mani-fold 'andat the other end has/air inlet Windows 23 controlled by the shutter ring13. At an intermediate p'intfthe pipe 1 is provided with the oilvaporizer 2, 3 supplied with :oil by pipe 11 and drained` by overflowpipe 12. The vaporizer 2', 3 may be heated by any suitable means as by'the engine exhaust or by an 'oil burner as shown in'Figs, 1 and 2. Inthe latter case 100 the pipes 11'and11 and 12 and 12 and shutter rings.13 and 13 maybe connected for simultaneous control so that the greaterthethrottle o ening at 23 the larger will be the burner ame, f

To provide electric current to event 'of interruption Whi urs onservice4 lines, I have shojivnin g. 4 the main line 27,-switchat 28 whenosed connectsf throughlwires 29 and 30 119 the motor, in ch usually occFi cl netized and spring 4l closes contact 42.

. tact 42 to` Wire 33 to switch 28 then to mor ing 35l of relay d 37charger 31 leads to wire 33 thence through switch 28 and to motor 5 thento relay 34 and back to charger 31. Secondary'wind- Assuming battery 87is below normal charge current from charger 31 will pass t0 contact 38said contact being c losed due to tension of lspring 39, through primaryWinding 40, to battery 37 to relay 34 and back to charger 31. e

As the battery 37 becomes more fully charged the current flowing throughprimary coil 4() decreases while that in secondary coil increases untilspring 39' is overcome and contact38 is opened thereby guarding againstover charging of the battery 37 In ease of failure of current comingfrom the main line 27 relay 34 becomes demag- Current 'from battery 37fiows through contorv 5 and'back to battery 37. When service 27 isresumed relay 34 opens y contact 42 and cuts out battery 37 and currentIfor the operation of the motor 5. and charging of the battery 37 istaken through the 'charger 31-from the main line 27 as above described.l

The principle of this invention is not confined to the apparatus-shownand described but it is intended to cover such modications 364is shuntedacross batterythereof\as fall Within the scope of the appended claims.

I claim:

1. Anoilburner comprising an air supply pipe, an oil vaporizer connectedthereto, and an oil supply pipe and an oil overflow pipe lconnected tosaid vaporizer, and means for heating said vaporizer comprising anextension of said air supply pipe adapted to pass the mixture of air andgas to a flame forming means beneath said vaporizer.

2. An oi-l burner comprising an air supply pipe, an oil vaporizerconnected thereto and an oil supply pipe and an oil overliow pipeconnected to said vaporizer, means for heatring said vaporizercomprising an extension of said air supply pipe adapted to pass themixture of air and gas to a flame forming means beneath said vaporizer,and means for starting said burner comprising oil retainer means inproximity to said flamev forming means.

3. In an apparatus for mixing air with oil vapor or gas, the combinationwith an air passage of a vaporizer connected thereto,

means for heating said vaporizer, 'and means i for supplying oil to saidva orizer comprising a float chamber, means or conveying oil from saidiioat chamber to said vaporlzer, and means for carryin ofli any excessoil from said vaporizer hac` to said float charm ber.

' NORMAN ENHOLM.l

